package com.lxb.blog.interceptor;

import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginInterceptor  extends HandlerInterceptorAdapter{
    @Override
    public boolean preHandle(HttpServletRequest request,
                             HttpServletResponse response,
                             Object handler) throws Exception {

        if(request.getSession().getAttribute("user") == null){
                //重定向到登录页面
                response.sendRedirect("/admin");
                return  false;
        }
        return true;
    }
}
